Incorrect posture during sleep can cause neck, back, and shoulder pain.
Two basic rules:
-Avoid sleeping face down.
-Keep to neutral position when sleeping on your side or on your back.
Sleeping on your stomach forces your neck to turn sideways and keeps you trapped as long as you are asleep. This can certainly cause irritation to the spine and nerves of the neck and shoulders.
Poor posture of the head forward when using the cell phone can result in a decrease in the vital capacity of the lungs by up to 30%.
This lack of air can lead to cardiac or vascular problems.
Flexing the neck and head to see the cell phone requires an isometric contraction of the neck muscles to maintain an imbalanced posture. By raising the cell at eye level relaxes the stress of the neck. It is important to keep the arm relaxed.
Excess weight in backpacks can cause back, neck and shoulder pain.
Over time this can cause poor posture such as back curvature, rounded shoulders and forward tilt.
When using the backpack in a single shoulder the column will try to compensate the extra weight by leaning to the side creating an imbalance throughout the body.
The use of backpacks with narrow straps can interfere with circulation since these straps can pinch the nerves causing possible tingling, numbness, and weakness in the arms and hands.
